LM2597HVMX-12

Voltage Regulators - DC DC Switching Regulators Overview

The LM2597HVMX-12/NOPB is a SIMPLE SWITCHER power converter from Texas Instruments, functioning as a step-down switching regulator. It operates with an input voltage range of 4.5 V to 60 V and provides a fixed output voltage of 12 V. The device delivers up to 500 mA of output current at a fixed switching frequency of 150 kHz. It utilizes a Buck topology and is housed in an SOIC-8 surface-mount package. The component supports operation within a temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated high-voltage switch capable of handling input voltages up to 60 V
• Fixed internal oscillator ensures stable 150 kHz switching frequency
• Includes built-in thermal shutdown and current limit protection

Voltage Regulators - DC DC Switching Regulators Applications

• Distributed power supply systems requiring buck conversion
• Pre-regulators for linear regulators
• Efficient on-card regulation from higher voltage buses

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the complete part number includes the NOPB suffix to confirm lead-free status and RoHS compliance. Confirm the specific package variant matches the required PCB footprint. Ensure the fixed 12 V output aligns with system requirements, as adjustable versions exist within the same series.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 12 V output is required from a wide input voltage range up to 60 V. The 500 mA current rating suits low-to-medium power applications. Consider the SOIC-8 package for space-constrained designs compared to larger through-hole options available in the broader family.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM2597HV series, designed for high-voltage step-down applications. It simplifies design by integrating the controller, oscillator, and power switch into a single monolithic IC. The series offers fixed voltage options alongside adjustable variants to accommodate diverse circuit needs.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2597HVMX-12/NOPB serves as a direct replacement for older non-NOPB versions with identical electrical characteristics. Cross-reference with other SIMPLE SWITCHER buck converters if different current ratings or packages are needed.